The Yellow Excitonic Series of Cu2O Revisited by Lyman Spectroscopy

We report on the observation of the yellow exciton Lyman series up to the fourth term in Cu2O by time-resolved mid-infrared spectroscopy. The dependence of the oscillator strength on the principal quantum number n can be well reproduced using the hydrogenic model including an AC dielectric constant, and precise information on the electronic structure of the 1s exciton state can be obtained. A Bohr radius a_{1s}=7.9 A and a 1s-2p transition dipole moment \mu_{1s-2p}= 4.2 eA were found

Integration of Oxide Anodes into the Rolls-Royce IP-SOFC Concept

The limitations of the current state of the art Ni-YSZ cermet anodes with respect to Redox stability, coking and sulphur tolerance are well acknowledged. A material which mitigates all or even some of these issues would be of great importence for the continued development of robust SOFC systems. One such promising material system is based around the perovskite (La,Sr)Cr(0.5)Mn(0.5)O(3) (LSCM). In this paper, some aspects of. the work, carried out to integrate LSCM anodes into the IP-SOFC, are described. The intricacies of the introduction of a new material into an existing stack design concept are considered and how this impacts the performance and requirements of adjacent materials. In the case of the LSCM integration, at least as much work has gone into the development of these layers as into the anode itself. In particular, the design of a current collector to optimise both the conductivity across the layers and the adhesion to the anode has proved to be a challenging task within the normal design constraints of the IP-SOFC. Initial perfomance of around 75 mW cm(-2) in a stack repeat unit test is encouraging and initial analysis has suggested that further development of the current collecting microstructure will confer significant performance improvements.</p

EURAU 2016 - In between scales - European Symposium on Research in Architecture and Urban Design. Abstracts

How can one define in-betweenness in terms of built environments? We want to explore the connections and cracks between the scales of public, communal and personal appropriation of the (un)built matter and space. We want to inspect the intervals between built and unbuilt (virtual?) objects, between territory and settlements, between settlements and communal built environment, between public and private places and spaces, and between private and intimate spaces. We want to investigate the links – and mutual misunderstandings - between culture of architecture and the culture of the vernacular; between the culture of the object based, top-to-bottom design procedures and the process based, bottom-up design strategies of contemporary parametricism. Also, we want to further elaborate on the mostly unseen and unexplored conceptual territories between social awareness and activism with respect to preservation, housing, and migration. And for this we address to Research, Education, Design, Implementation. All are processes, with different aims, at different scales, but all are processes of creation that are using research as a tool. The goal is to get out of the consecrated fields’ routine in order to investigate the creativity that bridges those fields, the one that is making possible the passage between the scales, the one that is guiding us towards an inner inter-disciplinarity

Author Correction: Biodiversity estimates and ecological interpretations of meiofaunal communities are biased by the taxonomic approach (Communications Biology, (2018), 1, 1, (112), 10.1038/s42003-018-0119-2)

In the original published version of the article, the acknowledgements incorrectly omitted a statement acknowledging the availability of public data through the authors’ funding from the Gulf of Mexico Research Initiative. This information was also missing from the Data Availability statement. In addition, the original version of the acknowledgements did not accurately reflect the relative funding to author Francesca Leasi from multiple sources. These errors have been corrected in the HTML and PDF versions of the article

Bridging the research-implementation gap in IUCN Red List assessments

The International Union for Conservation of Nature (IUCN) Red List of Threatened Species is central in biodiversity conservation, but insufficient resources hamper its long-term growth, updating, and consistency. Models or automated calculations can alleviate those challenges by providing standardised estimates required for assessments, or prioritising species for (re-)assessments. However, while numerous scientific papers have proposed such methods, few have been integrated into assessment practice, highlighting a critical research–implementation gap. We believe this gap can be bridged by fostering communication and collaboration between academic researchers and Red List practitioners, and by developing and maintaining user-friendly platforms to automate application of the methods. We propose that developing methods better encompassing Red List criteria, systems, and drivers is the next priority to support the Red List